Posting by Bruce Chambers from Google:
The Windows 25-character Product Key (required to perform the
installation) is stored on the CD packaging on a bright orange sticker
that says "Do not lose this number." If it was an OEM (factory
installed) license, it's stored on a label that the PC manufacturer
affixed to the exterior of the PC case, or on the bottom of a laptop.
To recover a lost Product Key:
If your system still runs, you should be able to use AIDA32
Enterprise from http://www.yqcomputer.com/
(If you have a factory-installed OEM license, and haven't since
reinstalled the OS, the revealed Product Key is probably of the drive
image used at the factory and not _your_ specific Product Key;
therefore, it probably cannot be -- and definitely should not be --
used for a re-installation.)
If it was a retail license and you have proof of purchase:
How to Replace Lost, Broken, or Missing Microsoft Software or Hardware
If it was an OEM license, you should contact whomever sold you the
OS; although very few manufacturers/vendors keep records of the
Product Keys they've sold, it's worth a try before you have to buy a
Help us help you:
Hope this helps.
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Stourport, Worcs, England
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